w1_ds2760.h

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/*
 * 1-Wire implementation for the ds2760 chip
 *
 * Copyright © 2004-2005, Szabolcs Gyurko <[email protected]>
 *
 * Use consistent with the GNU GPL is permitted,
 * provided that this copyright notice is
 * preserved in its entirety in all copies and derived works.
 *
 */

#ifndef __w1_ds2760_h__
#define __w1_ds2760_h__

/* Known commands to the DS2760 chip */
#define W1_DS2760_SWAP          0xAA
#define W1_DS2760_READ_DATA     0x69
#define W1_DS2760_WRITE_DATA        0x6C
#define W1_DS2760_COPY_DATA     0x48
#define W1_DS2760_RECALL_DATA       0xB8
#define W1_DS2760_LOCK          0x6A

/* Number of valid register addresses */
#define DS2760_DATA_SIZE        0x40

#define DS2760_PROTECTION_REG       0x00
#define DS2760_STATUS_REG       0x01
    #define DS2760_STATUS_IE    (1 << 2)
    #define DS2760_STATUS_SWEN  (1 << 3)
    #define DS2760_STATUS_RNAOP (1 << 4)
    #define DS2760_STATUS_PMOD  (1 << 5)
#define DS2760_EEPROM_REG       0x07
#define DS2760_SPECIAL_FEATURE_REG  0x08
#define DS2760_VOLTAGE_MSB      0x0c
#define DS2760_VOLTAGE_LSB      0x0d
#define DS2760_CURRENT_MSB      0x0e
#define DS2760_CURRENT_LSB      0x0f
#define DS2760_CURRENT_ACCUM_MSB    0x10
#define DS2760_CURRENT_ACCUM_LSB    0x11
#define DS2760_TEMP_MSB         0x18
#define DS2760_TEMP_LSB         0x19
#define DS2760_EEPROM_BLOCK0        0x20
#define DS2760_ACTIVE_FULL      0x20
#define DS2760_EEPROM_BLOCK1        0x30
#define DS2760_STATUS_WRITE_REG     0x31
#define DS2760_RATED_CAPACITY       0x32
#define DS2760_CURRENT_OFFSET_BIAS  0x33
#define DS2760_ACTIVE_EMPTY     0x3b

extern int w1_ds2760_read(struct device *dev, char *buf, int addr,
              size_t count);
extern int w1_ds2760_write(struct device *dev, char *buf, int addr,
               size_t count);
extern int w1_ds2760_store_eeprom(struct device *dev, int addr);
extern int w1_ds2760_recall_eeprom(struct device *dev, int addr);

#endif /* !__w1_ds2760_h__ */